lib: Event static properties non configurable and writable

The idl definition for Event makes the properties constants
this means that they shouldn't be configurable.
However, they were, and this commit fixes that.

Fixes: nodejs#50417

lib/internal/event_target.js

@@ -314,11 +314,6 @@ class Event {
       throw new ERR_INVALID_THIS('Event');
     this.#propagationStopped = true;
   }
-
-  static NONE = 0;
-  static CAPTURING_PHASE = 1;
-  static AT_TARGET = 2;
-  static BUBBLING_PHASE = 3;
 }
 
 ObjectDefineProperties(
@@ -354,32 +349,32 @@ ObjectDefineProperties(
     isTrusted: isTrustedDescriptor,
   });
 
-  Object.defineProperties(Event, {
-    NONE: {
-      writable: false,
-      configurable: false,
-      enumerable: true,
-      value: 0,
-    },
-    CAPTURING_PHASE: {
-      writable: false,
-      configurable: false,
-      enumerable: true,
-      value: 1,
-    },
-    AT_TARGET: {
-      writable: false,
-      configurable: false,
-      enumerable: true,
-      value: 2,
-    },
-    BUBBLING_PHASE: {
-      writable: false,
-      configurable: false,
-      enumerable: true,
-      value: 3,
-    }
-  });
+Object.defineProperties(Event, {
+  NONE: {
+    writable: false,
+    configurable: false,
+    enumerable: true,
+    value: 0,
+  },
+  CAPTURING_PHASE: {
+    writable: false,
+    configurable: false,
+    enumerable: true,
+    value: 1,
+  },
+  AT_TARGET: {
+    writable: false,
+    configurable: false,
+    enumerable: true,
+    value: 2,
+  },
+  BUBBLING_PHASE: {
+    writable: false,
+    configurable: false,
+    enumerable: true,
+    value: 3,
+  }
+});
 
 function isCustomEvent(value) {
   return isEvent(value) && (value?.[kDetail] !== undefined);